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Surf Forecasts:

Katagai surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 8 am Sunday 11 Jan 2026 JST
Forecast update in hr  min  s Forecast update imminent
Katagai surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Katagai sea temperature is
12.8° C
 (Which is 4.5°C colder than average for this time of year)

How big are the waves at Katagai today?

The current surf forecast for Katagai at 3PM is: 1.6m 5s primary swell from a South-southwest direction and 0.2m 12s secondary swell from a East direction, 0.1m 10s secondary swell from a East direction (forecast issued at 08:00am January 11). The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (11 Jan)5.5ft (1.7m)8s
Afternoon (11 Jan)5ft (1.6m)5s
Evening (11 Jan)3.5ft (1.0m)11s

Table - waves today at Katagai. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Sunday
11
Monday
12
Tuesday
13
Wed
14
6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
1
1
0
0
0
0
1
0
0
0
0
0
0
0
1
3
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2
S
1.7
S
1.2
S
1.6
SSW
1.4
S
1
S
0.9
S
0.8
S
0.6
S
0.5
S
0.4
S
0.2
E
0.3
E
0.6
SSW
0.7
SSW
1.1
SSW
1.3
SSW
1.4
SSW
1.6
SSW
1.7
SSW
1.5
SSW
0.9
S
1.1
S
2
SW
Period(s) (?)88859111111111010151599888889999
Wave
Graph
(?)Metric surfscale
Energy kJ (?)57240917713834722020315279543318396882160223250328404320123184607
Wind
(km/h)
30
SW
30
SW
40
SW
40
WSW
40
W
35
W
30
W
25
W
15
NW
5
NW
5
SSW
10
SSE
10
SSE
10
SW
15
WSW
20
WSW
35
WSW
35
SW
40
SW
40
WSW
35
WSW
25
WSW
10
NW
10
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscrosscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		offoffcross-
on		oncross-
on		crosscross-
off		cross-
off		cross-
off		crosscrosscross-
off		cross-
off		cross-
off		offoff
High Tide
/ height (m)
9:03AM
1.28
10:51PM
0.92
9:35AM
1.27
10:18AM
1.26
Low Tide
/ height (m)
4:24PM
0.60
2:37AM
0.85
5:42PM
0.54
6:55PM
0.45
Sunday
11
Monday
12
Tuesday
13
Wed
14
Sunrise-6:47-------6:47-------6:47------
Sunset---4:43-------4:44-------4:45----
light rain
cloud
clear
clear
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
Rain (mm)
1-----------------------
Temp. °C1513121175543456776791214151312108
Feels °C (?)9620-4-5-4-4-3-111331103564554
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Katagai surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Katagai at:
surf-forecast.com

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